First, let’s get one thing straight. Despite what you may have heard, it is cow burps, not cow farts, that are the real climate change problem.

Here’s how it works: Cows digest their food in four-part stomachs, including a “rumen,” which is a site that allows for fermentation — a process that gives off a lot of carbon dioxide and methane gas, as microorganisms aid in the process of digestion.